EIKONAmark by I. Pitas is now a series of watermarking products that embed in a variety of media types. The original EIKONAmark processed images: (input: BMP, JPG, TIF, TGA, GIF output: TIF, TGA, JPG)

Empty Pic by Robert Wallingford. Previous addresses: wallingford@usa.net, prof.engineer@usa.net, and robertw@crtelco.com URL: http://www.crtelco.com/~robertw/ Empty Pic is a command line tool for Windows that "hides" a GIF image by replacing the palette with a single color. The original may be restored with the software.

Hide and Seek by Colin Maroney Hide and Seek 4.1http://www.nic.funet.fi/pub/crypt/steganography/ (Finland) and Hide and Seek 5.0 is significant update to hideseek v4.1 which includes a lot of new features. Available at www.rugeley.demon.co.uk (UK) Hide and Seek for Windows 95 is also available

Paranoid by Nathan Mariels. Paranoid is primarily an encryption program that allows you to encrypt files with IDEA, triple DES, and an algorithm written by the author Nathan Mariels. It is a steganography program in that it allows you to hide files in sounds. FTP-Server: ftp://ftp.hacktic.nl/pub/crypto/macintosh/ (The Netherlands)

PGE - Pretty Good Envelope Hides data file into a GIF or JPG file of any size or resolution using a very simple method of appending the message to the file, and then appending a 4 byte little endian number which points to the start of the message. The encryption used is considered "weak" by the author, using another encryption method prior to applying PGE is recommended. Download from Version 1.0 (includes encryption) http://www.rugeley.demon.co.uk/security/encrypt.htm (UK) or version 2.0 (does not include encryption)http://www.afn.org/~afn21533/rgdprogs.htm (US).

PGPn123 A Windows front-end to PGP, which will hide a text file inside text. Basically a PGP shell tool that also includes a steganography option. Two versions are available: pn123-05.zip (freeware) and an enhanced version pn123e18.zip (shareware). Both may be available at http://www.stegoarchive.com (US)

PicSecret by Andrew Lee (Cortic Software). PicSecret allows users to hide text messages in images. Available for Mac OS X (free) and as a web-interface online at http://www.picsecret.com

S-Tools by Andrew Brown - S-Tools hides in a variety of cover media. This software is a good illustration of different versions hiding in different media. These versions cover hiding in BMP, GIF, WAV, and even on unused floppy disk space. Download: S-Tools 1.0 S-Tools 2.0 S-Tools 3.0 S-Tools 4.0 FTP-Server: ftp://ftp.funet.fi/pub/crypt/mirrors/idea.sec.dsi.unimi.it/code/ (Finland)

ScramDisk by Anonymous (AMAN) Author of the program wishes to remain anonymous. ScramDisk support could once be obtained through the alt.security.scramdisk newsgroup. The author uses the pseudonym AMAN. Information about Scramdisk is hosted by Sam Simpson. (scramdisk@samsimpson.com) Previous address: http://www.scramdisk.clara.net/ Several products have been derived from Scramdisk. A sourceforge project is also avilable providing Scramdisk 4 Linux (SD4L) based on this product. Win32 AUDIO: (WAV )

Scytale by Patrick Buseine is a Windows PGP interface that includes an option to hide data in .PCX files. Previous website http://scytale.rever.fr/main.html (France)

Snow (also variants include !SnowDOS, SnowJava, JSnow By Matthew Kwan is available in both DOS and JAVA executable formats. "snow exploits the steganographic nature of whitespace. Locating trailing whitespace in text is like finding a polar bear in a snowstorm. And it uses the ICE encryption algorithm, so the name is thematically consistent." Information and software is available at http://www.darkside.com.au/snow/index.html (Australia)

Stego - Steganosaurus, Stegosaurus by John Walker - Text-based steganography program to send encrypted messages and files. For more information and syntax see: http://www.fourmilab.ch/nav/topics/crypto.html (Switzerland) public domain.

Stego (Stego v1.0a2) by Romana Machado is a steganography tool that enables you to embed data in Macintosh PICT format files, without changing the appearance or size of the PICT file. Thus, Stego can be used as an "envelope" to hide a previously encrypted data file in a PICT file, making it much less likely to be detected. Available at: http://www.nic.funet.fi/pub/crypt/steganography/(Italy) and ftp://ftp.hacktic.nl/pub/crypto/macintosh/ (The Netherlands)

Texto Texto by Kevin Maher is a text steganography program which transforms uuencoded or PGP ascii-armoured ascii data into English sentences. Texto text files look like something between mad libs and bad poetry, (although they do sometimes contain deep cosmic truths) and should be close enough to normal english to get past simple-minded mail scanners. FTP-Server: http://www.nic.funet.fi/pub/crypt/steganography/ (Finland)

Wnstorm - White Noise Storm Wnstorm (White Noise Storm) is a cryptography and steganography software package which you can use to encrypt and hide files within PCX images. Available at http://www.nic.funet.fi/pub/crypt/steganography/ (Finland)